Add 7/10 and 42/80
7/10 + 42/80 is 49/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 10 × 8 = 80,
7/10 = 7 × 8/10 × 8 = 56/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
42/80 = 42 × 1/80 × 1 = 42/80 - Add the two like fractions:
56/80 + 42/80 = 56 + 42/80 = 98/80 - 98/80 simplified gives 49/40
- So, 7/10 + 42/80 = 49/40
In mixed form: 19/40
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